CVE-2016-8763
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe TrustZone driver in Huawei P9 phones with software Versions earlier than EVA-AL10C00B352 and P9 Lite with software VNS-L21C185B130 and earlier versions and P8 Lite with software ALE-L02C636B150 and earlier versions has an improper resource release vulnerability, which allows attackers to cause a system restart or privilege elevation.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe TrustZone driver in Huawei P9, P9 Lite, and P8 Lite phones contains an improper resource release vulnerability. TrustZone is ARM's Trusted Execution Environment that isolates sensitive operations from the main OS. The vulnerability allows local or potentially remote attackers to trigger resource exhaustion or improper cleanup, leading to system restart or privilege elevation to the TrustZone level.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versions<= vns-l21c185b130<= ale-l02c636b150CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify device modelGo to Settings > About Phone and note the exact model name (P9, P9 Lite, or P8 Lite)Affected if Device is a Huawei P9, P9 Lite, or P8 Lite
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Check firmware version on P9On P9 devices, go to Settings > About Phone > Version and record the full firmware build number (e.g., EVA-AL10C00B352)Affected if P9 is running any firmware version (all versions affected)
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Check firmware version on P9 LiteOn P9 Lite devices, go to Settings > About Phone > Version and record the full build number (typically starts with vns-l21)Affected if P9 Lite firmware version is vns-l21c185b130 or earlier
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Check firmware version on P8 LiteOn P8 Lite devices, go to Settings > About Phone > Version and record the full build number (typically starts with ale-l02)Affected if P8 Lite firmware version is ale-l02c636b150 or earlier
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Verify TrustZone statusOn affected models, the TrustZone driver vulnerability exists regardless of TrustZone configuration; no specific config check needed as the flaw is in the driver itselfAffected if Device is an affected model running an affected firmware version
Device is affected if it is a Huawei P9 (any version), P9 Lite (vns-l21c185b130 or lower), or P8 Lite (ale-l02c636b150 or lower).
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the vendor-supplied software update: P9 to EVA-AL10C00B352 or later, P9 Lite to VNS-L21C185B130 or later, and P8 Lite to ALE-L02C636B150 or later.
- Consultation2.0 h
- Testing1.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-8763 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2016-8763 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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